Standing near the dried river bed marking Ghana’s northern border, Alima can see her old hamlet, lying in Burkina Faso –- less than two kilometres (1.2 miles) away. But she says she will never go back after gun-toting jihadists killed two watchmen in her village last year. The number of families crossing the border reinforces what Ghana’s government already knew: Ghana along with Gulf of Guinea neighbours Benin, Togo and Ivory Coast are quickly becoming the new frontline in the Sahel jihadist war ravaging their northern neighbour.